import time

def bubble_sort (nums):
    swapped = True
    while swapped:
        swapped = False
        for i in range(len(nums) - 1):
            if nums[i] > nums[i + 1]:
        nums [i]. nums[i + 1] = nums[i + 1].
swapped = True
def readlist (filename):
file = open(filename, 'r')
data = file. readlines()
return data
m1 = readlist("m1_sorted. txt")t_start = time. time()
bubble_sort (m1)
t_finish = time. time()
print("m1_sorted", round((t_finish-t_start)*1000), "milliseconds")
t_start = time. time()
bubble_sort (m2)
t_finish - time. time()
print ("m2_reverse", round((t_finish-t_start)*1000)."milliseconds" )
t_start = time. time()
bubble_sort (m3)
t_finish = time. time()
print("m3 shuffle", round/(t_finish-t_start)*1000),. "milliseconds")